MSP430F2274-EP_1 Datasheet, PDF (8/77 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2274-EP
SLAS614C – SEPTEMBER 2008 – REVISED JULY 2010
www.ti.com
Interrupt Vector Addresses
The interrupt vectors and the power-up starting address are located in the address range of 0FFFFh–0FFC0h.
The vector contains the 16-bit address of the appropriate interrupt handler instruction sequence.
If the reset vector (located at address 0FFFEh) contains 0FFFFh (e.g., flash is not programmed), the CPU goes
into LPM4 immediately after power up.
INTERRUPT SOURCE
Power up
External reset
Watchdog
Flash key violation
PC out-of-range⁽¹⁾
NMI
Oscillator fault
Flash memory access violation
Timer_B3
Timer_B3
Watchdog Timer
Timer_A3
Timer_A3
USCI_A0/USCI_B0 Receive
USCI_A0/USCI_B0 Transmit
ADC10
I/O Port P2 (eight flags)
I/O Port P1 (eight flags)
(5)
(6)
INTERRUPT FLAG
PORIFG
RSTIFG
WDTIFG
KEYV
(2)
NMIIFG
OFIFG
ACCVIFG ^{(2) (3)}
TBCCR0 CCIFG⁽⁴⁾
TBCCR1 and TBCCR2
CCIFGs, TBIFG^{(2) (4)}
WDTIFG
TACCR0 CCIFG⁽⁴⁾
TACCR1 CCIFG,
TACCR2 CCIFG,
TAIFG ^{(2) (4)}
UCA0RXIFG, UCB0RXIFG⁽²⁾
UCA0TXIFG, UCB0TXIFG⁽²⁾
ADC10IFG ⁽⁴⁾
P2IFG.6 to P2IFG.7^{(2) (4)}
P1IFG.0 to P1IFG.7^{(2) (4)}
SYSTEM
INTERRUPT
WORD ADDRESS
PRIORITY
Reset
0FFFEh
31, highest
(non)-maskable,
(non)-maskable,
(non)-maskable
maskable
maskable
maskable
maskable
maskable
maskable
maskable
maskable
maskable
maskable
0FFFCh
30
0FFFAh
29
0FFF8h
28
0FFF6h
27
0FFF4h
26
0FFF2h
25
0FFF0h
24
0FFEEh
0FFECh
0FFEAh
0FFE8h
0FFE6h
0FFE4h
0FFE2h
0FFE0h
0FFDEh
0FFDCh ... 0FFC0h
23
22
21
20
19
18
17
16
15
14 ... 0, lowest
(1) A reset is generated if the CPU tries to fetch instructions from within the module register memory address range (0h–01FFh) or from
within unused address range.
(2) Multiple source flags
(3) (non)-maskable: the individual interrupt-enable bit can disable an interrupt event, but the general interrupt enable cannot.
Nonmaskable: neither the individual nor the general interrupt-enable bit disables an interrupt event.
(4) Interrupt flags are located in the module.
(5) This location is used as bootstrap loader security key (BSLSKEY). A 0AA55h at this location disables the BSL completely. A zero (0h)
disables the erasure of the flash if an invalid password is supplied.
(6) The interrupt vectors at addresses 0FFDCh to 0FFC0h are not used in this device and can be used for regular program code if
necessary.
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